 /*******************************************************************************
  * Copyright (c) 2005, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.ui.internal.actions;

 import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IPersistableEditor;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.IWorkbenchWindow;
 import org.eclipse.ui.PartInitException;
 import org.eclipse.ui.XMLMemento;
 import org.eclipse.ui.internal.ActiveEditorAction;
 import org.eclipse.ui.internal.IWorkbenchConstants;
 import org.eclipse.ui.internal.WorkbenchMessages;
 import org.eclipse.ui.internal.WorkbenchPage;
 import org.eclipse.ui.internal.dialogs.DialogUtil;

 /**
  * Opens another editor of the same kind, and on the same input, as the active editor.
  *
  * @since 3.1
  */
 public class NewEditorAction extends ActiveEditorAction {

     /**
      * Creates a new <code>NewEditorAction</code>.
      *
      * @param window the window in which the action will appear
      */
     public NewEditorAction(IWorkbenchWindow window) {
         super(WorkbenchMessages.NewEditorAction_text, window);
         setId("newEditorAction"); //$NON-NLS-1$
 setToolTipText(WorkbenchMessages.NewEditorAction_tooltip);
         setActionDefinitionId("org.eclipse.ui.window.newEditor"); //$NON-NLS-1$
 }

     /* (non-Javadoc)
      * @see org.eclipse.jface.action.Action#run()
      */
     public void run() {
         IWorkbenchPage page = getActivePage();
         IEditorPart editor = getActiveEditor();
         if (page == null || editor == null) {
             return;
         }
         String editorId = editor.getSite().getId();
         if (editorId == null) {
             return;
         }
         try {
             if (editor instanceof IPersistableEditor) {
                 XMLMemento editorState = XMLMemento
                         .createWriteRoot(IWorkbenchConstants.TAG_EDITOR_STATE);
                 ((IPersistableEditor) editor).saveState(editorState);
                 ((WorkbenchPage) page).openEditor(editor.getEditorInput(),
                         editorId, true, IWorkbenchPage.MATCH_NONE, editorState);
             } else {
                 page.openEditor(editor.getEditorInput(), editorId, true,
                         IWorkbenchPage.MATCH_NONE);
             }
         } catch (PartInitException e) {
             DialogUtil.openError(page.getWorkbenchWindow().getShell(),
                     WorkbenchMessages.Error,
                     e.getMessage(), e);
         }
     }
 }


